Questions about rsd vinyl

I have so many questions first of all why is it 50 euros? 😀😭 (that hurt) and why is it so limited for a rsd first release? Do we think it will be widely available after rsd? (Like in retail stores) because I want this but I don't know if I can justify it if its not gonna be limited online anyway (or if I should buy the guess 7 inch instead)